__author__ = 'thanatos'

import logging; logging.basicConfig(level=logging.INFO)

class DuplicateError(BaseException):

    def __init__(self, *args):
        pass

class ForbidError(BaseException):

    def __init__(self, *args):
        pass

class PrivilegeError(BaseException):

    def __init__(self, *args):
        pass
